Paper-stock shredder.



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G. D. RYTHER.

PAPER STOGK SHREDDER.

AYPLIOATION FILED MAY 18, 1911.

Patented Ap?. 16, i912.

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G. D. RYTHER.

PAPER STOCK SHBEDDEB. APPLICATION FILED MAY 18, 1911.

'Patented Apr. 16,' 1912.

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Uhllliilfli STATE@ PATENT @hlhlQE GEORGE D. RYTHER, 0F (ARTI-IAG-E, NEW YORK, ASSIGNOR TO THE RYTHER & PRINGL" C( MPANY, OF CARTHAGE, N EW YORK.

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To aZZwwm 'it may concern.

Be it known that I, GEORGE D. RYTHEB, a

citizen of the United States, residing at Carthage, in the county of Jefferson and State of New York, have invented certain :new and .useful Improvements in Paper- Specincation of Letters Patent.

Application led May 181911. SerialNo. 628,054.

erence being had to the accompanying drawings, and to the letters and ti ures of reference marked thereon,which-'form a part of this specification.

This invention relates to new and useful improvements in .paper stock shredding apparatus and comprises, in connection with other features of the apparatus, means whereby pieces of stock, which may pass by the table upon which the stock rests while being shredded, may be disintegrated by coming in contact with serrated blades adj ustably held relative to the shredding saws.

,The invention comprises various details of construction and combinations and arrangements of' parts which will be hereinafter fully described and then specifically defined in the appended claims.

l illustrate my invention in the accompanying drawings, in which 1 Figure l is an end elevation of the apparatus embodying the features rof my inven tion. Fig- 2 is a front elevation. Fig. 3 is a vertical sectional view on line 3-3 oflFi 2, and Fig. 4t is a detail plan viewzof the ad? justable member carrying the shredding blades.

Reference now being had to the details of the drawings by letter, A designates the frame of the apparatus which supportsrthe table A, feed rolls A. and' A" and the arbor li. A series ot' shredding saws l) is keyed t0 the arbor in positions spaced apart iadparallel to leach other and at nmlinations lo the arbor, as shown clearly in Fig. ot the drawings, so that, as the arbor is ruined, said saws will have a rasping .ieion as they rotate. against the .stock lo be shredded. "ashers- .E are mounted upon the arbor,

adapted to hold the saws spared apart. l Said arbor is journaled in the pillow blocks l*` movable upon a horizontal portion ol the frame and adjusted by means ot the screws :A3 is mounted.

Patented Apr, ie, wie.

le" which are mounted in threaded apertures in upwardly projecting lugs F2 of the frame and affording means whereby a lateral movement may be imparted to said blocks for the purpose of adjustin' the saws relative to the steel bed plate (ur, which forms a part of the frame of the apparatus and upon which the stock rests as it is being shredded. A pulley Q is mounted upon the shaft J and a belt Q2 passes' about the pulley Q, and

a pulley il which is fixed to the arbor IBL*` forming means whereby rotary motionmay be imparted to the shaft J A gear wheel' Q3 is fixed `to the shaftd and is in mesh with theteeth of the gear wheel R' fastened to the shaftQ upon which the feed roll a stub'shaft P mounted upon the leverv S, which latter is pivotcd upon a in S. Said idler is adapted to bear against the belt j An idler P is journaled upon Arms K are )ivotally mounted upon pins K carried by t e projecting portions of the frame and said arms' are provided with openings K2 in which the bearing bloeksl3 are adjustably held and :which latter carry the spindle ends K4 of the feed roll A2. 'Adv justing screws J are mounted in the thread# ed apertures in` the'walls about said opening and their inner ends bear against the boxes li and adording means whereby the latter may be held in different adjusted positions.

A suitable hood, designated b letter Kwis' mounted ever the saws and is iingd 'at X".

In order to regulate the pressure of the feed roll A2, a. foot lever 'J5 is pivotally mounted upon a pivot J5 upon the frame and is connected pivotally by meansof the rods .lf with said arm K.

Fastened to the upright ortlons of the frame is the T-iron W, an I secured at its lower end to said Tiron is a diagonally W* projecting from the upper face thereof and upon which the swinging member TV5 is pivoted by means of the pins W". The member W is adjusted to'dierent positions by means of the set screws lV anc held in such adjusted positions by means of the bolts lV passing through apertures in the llange W1" of said member and also through apertures in the' plate W', suitable nuts l 11 cooperating with the bolt to hold the memf ber in adjusted position.

A bed plate-Y is mounted upon the mem- -ber and is held thereto by means of the screws Y which engage threaded holes in said bed plate and also threaded apertures in the member lV. The upper surface of the bed plate Y has a concaved recess Y' and the ends of said recess are undercut and are adapted to receive a series of serrated Ishredding members Ya. Intermediate said shredding members Y3 are spacing blocks Y5.

The various shredding members Y are inserted in the recess in the shoe, having dove-fail connection therewith. As the shredding members Y3 are held stationary and as the saws D are adapted to rotate in# termediate said .me1nbers,the coarse particles of the stock to be shredded will either be held stationary between the shredding 4members Y3 or held stationary by the teeth Y4 thereon, while the gang saws have a Wabbling motion intermediate said shredding members, thus aifording means for thoroughly shredding the stock.

The operation of my apparatus will be readily understood.-

The coarse particles of the paper stock to 30 be shredded are fed forward by the conveyers and held on the table by the idler. The "rapidly rotating shredding knives or saws catch the stock upon the marginal edge of the table and carry the same forward and the coarse particles of the stock which enter the' spaces intermediate 4the stationary shredding` knives, or which coarse particles vhappen to lodge upon the teeth of the stationary shredding knives, will be held there 4() by as the saws or shredding blades have a Wabbling, rasping effect upon said coarse particles, thus reducing the same to proper shredded condition. Through t-he medium. oftheadjusting means, it 4will be noted that the member carrying the shoe upon which the stationary blades are mounted may be raisedgor. lowered to regulate the depth atV mounted, a series of shredding saws tixed to the arbor, parallel one to another and atinclinations to said arbor, a bed plate underneath the shredding saws, a series of sta; tionary shredding `knives mounted upon said bed plate and spaced apart parallel to .one another and between which the saws of the arbor are adapted to have a wabbling motion as the arbor rotates,as setforth.

2. A paper stock shredding apparatus comprising, in combination with a rotatable arbor and frame in which the same is mounted, a. series of shredding saws fixed to the arbor, parallel one to another and at inclinations to` said arbor, a bed plate pivoted to the traine and positioned under* .heath the saws, means for adjusting said bed plate, a shoe upon the latter, stationary shredding knives mounted upon the shoe and spaced apart and between which the saws are adapted to have a Wabbling motion as the arbor rotates, as setfort-h. l

In testimony whereof I hereunto atlix my signature in the presence of two witnesses. GEO. D. RYTHER. lVitnessfes STANLEY S. LINNEY, GEORGE S. LUBELL. 

